a-a a-b a-c aaa aab aac aah aaj ab- aba abb abc abh abj ac- aca acb acc ach acj aha ahb ahc ahh ahj aja ajb ajc ajh ajj baa bab bac bah baj bba bbb bbc bbh bca bcb bcc bch bcj bha bhb bhc bhh bhj bja bjc bjj c-- c-j caa cab cac cah caj cba cbb cbc cbh cbj cca ccb ccc cch ccj ch- cha chb chc chh cja cjb cjc haa hab hac hah haj hba hbb hbc hbh hbj hca hcb hcc hch hcj hha hhb hhc hhh hhj hja jaa jab jac jah jaj jba jbc jbj jca jcb jcc jch jha jhc jhj jja jjb jjc jjj